<https://www.toyotaownersclub.com/forums/topic/207425-cvt-engine-revs-up-to-3k-4k-when-driving-on-a-steep-hille/#comment-1643693>
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"Its a perfectly normal response on the 1.33 CVT which as Cyker mentions is applying engine braking as the car descends a hill\n \n"
<https://www.toyotaownersclub.com/forums/topic/207425-cvt-engine-revs-up-to-3k-4k-when-driving-on-a-steep-hille/>